25x^2 and 25x^2 along with 16 and -16.
9374 is the population after 3 years.
hope that helps.
Answer:
Ducks = 8
Horses = 17
Step-by-step explanation:
From the question;
- Total number of animals = 25
- Total number of legs = 84 legs
We are required to determine the number of ducks and horses;
We need to know that;
A duck has two legs while a horse has four legs;
Assuming there were x ducks and y horses
Then;
x + y = 25 ................................Eqn 1
And;
2x + 4y = 84 .............................Eqn 2
Solving the two equations simultaneously we can get the number of each animal.
x + y = 25
2x + 4y = 84
Multiplying the first equation by 2, we get
2x + 2y = 50
2x + 4y = 84
Subtracting the two equations;
2x + 2y = 50
2x + 4y = 84
........................................................
- 2y = -34
y = 17
Solving for x
x = 25 -17
= 8
Therefore; there were 8 ducks and 17 horses in the field
Answer:
56x² + 2xy+ 3y²
Step-by-step explanation:
81x²+18xy+18xy+4y² - (25x²+10xy+y²) = 56x² + 2xy+ 3y²
Answer:
1 over 2 to the 19 power I hope it helps you